after rideing my zilla for a while the idle stays up and wont go down till i let lt sit for a little while its not real bad that you can't ride it but just wondering if some one know what the problem might be.

Sounds like you are lean on the idle/pilot circuit. Try screwing in the air screw on the side of the carb. It should be about 1 1/2 to 2 turns out. You might have to go to a larger pilot jet if this won't cure the problem.

ORRRRRRR if you havnt had your cases fixed yet, you need to.

If you havnt, the main seals are blown and sucking in air. (high idle and...worse)

-Matt

What is a good engine builder to send my zilla engine to to have this case prob fixed as mine hasnt been repaired and I dont want it to cause any big problems down the road.

Tudors Performance did a wonderfull job on mine.

www.tudorsperformance.com

click on specials, then goto LT500.
They do a lot of work for the $980.00, and he (jeff) did a great job.

-Matt

ps. LT500's are their specialty. (I personally delivered and picked up my motor, and hung around the shop for quite a while both visits)

THERE IS A KEEPER THAT SETS ON TOP OF THE NEEDLE SET ON THE CARBS SLIDE IF IT'S GONE IT DOESN'T IDLE DOWN VERY WELL. LOST MINE ONE DAY CLEANING CARB LEARNED THE HARD WAY